Neutral sound headphones

Been reading a lot about full size headphones and am looking to invest in a quality pair in the sub $200 range.

ATHM50 I hear is excellent value but have been hearing a lot of complaints about recessed mids. What does that mean exactly? I also like the alternate popular options KNS8400, DT770Pro (250 ohms), HFI 580, SRH840, and Vmoda Crossfade LP.

Some different cheaper options I've found are Sennheiser HD 449, SRH440, Sennheiser HD 518 but haven't seen much on head-fi.

The music I listen to is a broad range of everything but I enjoy my bass but also hearing all the different instruments.

Here are some songs that hopefully help narrow if recessed mids, sharp highs, or muddy bass will affect a lot or not.

Cool thanks. A balanced sound is what I want. The 840s are nice but pricier and I like the look of the 580s more. The Soundmagic I'd get later probably if I have a greater need for quality sound. Thanks for the help everyone!